<?php
/**
 * File: F_Network.php
 * Functionality: Extra network functions
 * Author: Nic XIE
 * Date: 2012-03-01
 */

/**
 * Get client IP Address
 */
if (!function_exists('getClientIP')) {
    function getClientIP()
    {
        if (isset($_SERVER['HTTP_ALI_CDN_REAL_IP']) AND $_SERVER['HTTP_ALI_CDN_REAL_IP']) {
            $ip = $_SERVER["HTTP_ALI_CDN_REAL_IP"];
        } elseif (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
            $ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
        } elseif (isset($_SERVER["HTTP_CLIENT_IP"])) {
            $ip = $_SERVER["HTTP_CLIENT_IP"];
        } elseif (isset($_SERVER["REMOTE_ADDR"])) {
            $ip = $_SERVER["REMOTE_ADDR"];
        } elseif (getenv("HTTP_X_FORWARDED_FOR")) {
            $ip = getenv("HTTP_X_FORWARDED_FOR");
        } elseif (getenv("HTTP_CLIENT_IP")) {
            $ip = getenv("HTTP_CLIENT_IP");
        } elseif (getenv("REMOTE_ADDR")) {
            $ip = getenv("REMOTE_ADDR");
        } else {
            $ip = "Unknown";
        }
        //只取第一个
        $ip_array = explode(',', $ip);
        return $ip_array[0];
    }
}

/**
 * Is visitor a spider ?
 */
if (!function_exists('isSpider')) {
    function isSpider()
    {

        if (empty($_SERVER['HTTP_USER_AGENT'])) {
            return '';
        }

        $searchengine_bot = array(
            'googlebot',
            'mediapartners-google',
            'baiduspider+',
            'msnbot',
            'yodaobot',
            'yahoo! slurp;',
            'yahoo! slurp china;',
            'iaskspider',
            'sogou web spider',
            'sogou push spider'
        );

        $searchengine_name = array(
            'GOOGLE',
            'GOOGLE ADSENSE',
            'BAIDU',
            'MSN',
            'YODAO',
            'YAHOO',
            'Yahoo China',
            'IASK',
            'SOGOU',
            'SOGOU'
        );

        $spider = strtolower($_SERVER['HTTP_USER_AGENT']);

        foreach ($searchengine_bot AS $key => $value) {
            if (strpos($spider, $value) !== false) {
                $spider = $searchengine_name[$key];

                return $spider;
            }
        }

        return '';
    }
}

/**
 *  Get user broswer type
 */
if (!function_exists('getUserAgent')) {
    function getUserAgent()
    {
        $user_agent = '';
        $server_user_agent = $_SERVER["HTTP_USER_AGENT"];
        if (empty($server_user_agent)) {
            return '';
        } elseif (strpos($server_user_agent, "MSIE")) {
            if (strpos($server_user_agent, "MSIE 6.0")) {
                $user_agent = 'IE6';
            } elseif (strpos($server_user_agent, "MSIE 7.0")) {
                $user_agent = 'IE7';
            } elseif (strpos($server_user_agent, "MSIE 8.0")) {
                $user_agent = 'IE8';
            } elseif (strpos($server_user_agent, "MSIE 9.0")) {
                $user_agent = 'IE9';
            } elseif (strpos($server_user_agent, "MSIE 10.0")) {
                $user_agent = 'IE10';
            } else {
                $user_agent = 'IE';
            }
        } elseif (strpos($server_user_agent, "Netscape")) {
            $user_agent = 'Netscape';
        } elseif (strpos($server_user_agent, "Firefox")) {
            $user_agent = 'Firefox';
        } elseif (strpos($server_user_agent, "MicroMessenger")) {
            $user_agent = 'Weixin';
        } elseif (strpos($server_user_agent, "Chrome")) {
            if (strpos($server_user_agent, "UCBrowser")) {
                $user_agent = 'UCBrowser';
            } elseif (strpos($server_user_agent, "QQBrowser")) {
                $user_agent = 'QQBrowser';
            } elseif (strpos($server_user_agent, "BIDUBrowser")) {
                $user_agent = 'BIDUBrowser';
            } elseif (strpos($server_user_agent, "LBBROWSER")) {
                $user_agent = 'LBBROWSER';
            } elseif (strpos($server_user_agent, "MetaSr")) {
                $user_agent = 'SOGOU';
            } elseif (strpos($server_user_agent, "Maxthon")) {
                $user_agent = 'Maxthon';
            } elseif (strpos($server_user_agent, "TheWorld")) {
                $user_agent = 'TheWorld';
            } elseif (strpos($server_user_agent, "Edge")) {
                $user_agent = 'IE Edge';
            } else {
                $user_agent = 'Chrome';
            }
            return $user_agent;
        } elseif (strpos($server_user_agent, "Safari")) {
            $user_agent = 'Safari';
        } elseif (strpos($server_user_agent, "Opera")) {
            $user_agent = 'Opera';
        } elseif (strpos($server_user_agent, "UCWEB")) {
            $user_agent = 'UCWEB';
        } else {
            $user_agent = 'other';
        }
        return $user_agent;
    }
}

/**
 *  Get user OS
 */
if (!function_exists('getUserOS')) {
    function getUserOS()
    {
        if (empty($_SERVER['HTTP_USER_AGENT'])) {
            return 'Unknown';
        }

        $os = '';
        $agent = strtolower($_SERVER['HTTP_USER_AGENT']);

        if (strpos($agent, 'win') !== false) {
            if (strpos($agent, 'nt 10.0') !== false) {
                $os = 'Windows 10';
            } elseif (strpos($agent, 'nt 6.1') !== false) {
                $os = 'Windows 7';
            } elseif (strpos($agent, 'nt 5.1') !== false) {
                $os = 'Windows XP';
            } elseif (strpos($agent, 'nt 5.2') !== false) {
                $os = 'Windows 2003';
            } elseif (strpos($agent, 'nt 5.0') !== false) {
                $os = 'Windows 2000';
            } elseif (strpos($agent, 'nt 6.0') !== false) {
                $os = 'Windows Vista';
            } elseif (strpos($agent, 'nt') !== false) {
                $os = 'Windows NT';
            }
        } elseif (strpos($agent, 'android') !== false) {
            $os = 'Android';
        } elseif (strpos($agent, 'linux') !== false) {
            $os = 'Linux';
        } elseif (strpos($agent, 'mac') !== false) {
            $os = 'Apple';
        } else {
            $os = 'Unknown';
        }
        return $os;
    }
}

if (!function_exists('isMobile')) {
    function isMobile()
    {
        $phonesregex = '/android .+ mobile|avantgo|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i';
        $modelsregex = '/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|e\-|e\/|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|xda(\-|2|g)|yas\-|your|zeto|zte\-/i';
        return (preg_match($phonesregex, $_SERVER['HTTP_USER_AGENT']) || preg_match($modelsregex, substr($_SERVER['HTTP_USER_AGENT'], 0, 4)));
    }
}

if (!function_exists('isWeixin')) {
    function isWeixin()
    {
        if (strpos($_SERVER['HTTP_USER_AGENT'], 'MicroMessenger') !== false) {
            return true;
        }
        return false;
    }
}

//通过URL获取域名
if (!function_exists('getDomainByUrl')) {
    function getDomainByUrl($url)
    {
        $domain = '';
        if ($url) {
            $url = str_replace("http://", "", $url);
            $url = str_replace("https://", "", $url);
            if ($url) {
                $strdomain = explode("/", $url);
                if (is_array($strdomain) AND !empty($strdomain) AND isset($strdomain[0])) {
                    $domain = $strdomain[0];
                }
            }
        }
        return $domain;
    }
}

//通过淘宝接口获取IP归属地
if (!function_exists('getIpInfo')) {
    function getIpInfo($ip)
    {
        if ($ip) {
            $url = 'http://ip.taobao.com/service/getIpInfo.php?ip=' . $ip;
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_HEADER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
            curl_setopt($ch, CURLOPT_TIMEOUT, 30);
            $result = curl_exec($ch);
            curl_close($ch);
            if ($result) {
                $result = json_decode($result, true);
                if (!$result['code']) {
                    if (isset($result['data']['region']) AND isset($result['data']['city'])) {
                        if ($result['data']['region']) {
                            return array('ip' => $ip, 'region' => $result['data']['region'], 'city' => $result['data']['city']);
                        } else {
                            return array('ip' => $ip, 'region' => $result['data']['country'], 'city' => $result['data']['country']);
                        }
                    }
                }
            }
        }
        return false;
    }
}
//地址处理
if (!function_exists('siteUrl')) {
    function siteUrl($domain, $path = '', $str = '', $http = FALSE)
    {
        if ($domain == '') {
            $domain = $_SERVER['HTTP_HOST'];
        }
		
		//1.处理HTTP HTTPS问题
        if ($http) {
            $http = 'http://';
        } else {
            if (preg_match("/https/iu", $domain)) {
                $http = 'https://';
            } else {
                $http = 'http://';
            }
        }

        //2.判断是否只是处理域名URL并组装
        if ($path == '' AND $str == '') {
            $domain = str_replace("http://", "", $domain);
            $domain = str_replace("https://", "", $domain);
            $url = $domain;
        } elseif ($str == '') {
            $domain = getDomainByUrl($domain);
            $url = $domain . '/' . $path;
        } elseif ($path == '') {
            $domain = getDomainByUrl($domain);
            $url = $domain . '/?' . $str;
        } else {
            $domain = getDomainByUrl($domain);
            $url = $domain . '/' . $path . '/?' . $str;
        }
        //4.去 // ??
        $url = str_replace("//", "/", $url);
        $url = str_replace("??", "?", $url);
        $url = $http . $url;
        return $url;
    }
}
//判断是否为https
if (!function_exists('isHttps')) {
    function isHttps()
    {
        if (isset($_SERVER['HTTPS']) AND !empty($_SERVER['HTTPS']) AND strtolower($_SERVER['HTTPS']) !== 'off') {
            return TRUE;
        } elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) AND strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) === 'https') {
            return TRUE;
        } elseif (isset($_SERVER['HTTP_FRONT_END_HTTPS']) AND !empty($_SERVER['HTTP_FRONT_END_HTTPS']) AND strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off') {
            return TRUE;
        } elseif (isset($_SERVER['SERVER_PORT']) AND $_SERVER['SERVER_PORT'] == 443) {
            return TRUE;
        } elseif (isset($_SERVER['HTTP_X_CLIENT_SCHEME']) AND strtolower($_SERVER['HTTP_X_CLIENT_SCHEME']) == 'https') {
            return TRUE;
        } else {
            return FALSE;
        }
    }
}

/**
 * 是否是AJAx提交的
 * @return bool
 */
if (!function_exists('isAjax')) {
    function isAjax()
    {
        if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
            return true;
        } else {
            return false;
        }
    }
}
/**
 * 是否是GET提交的
 */
if (!function_exists('isGet')) {
    function isGet()
    {
        return strtolower($_SERVER['REQUEST_METHOD']) == 'get' ? true : false;
    }
}
/**
 * 是否是POST提交
 * @return int
 */
if (!function_exists('isPost')) {
    function isPost()
    {
        return ($_SERVER['REQUEST_METHOD'] == 'POST' && (empty($_SERVER['HTTP_REFERER']) || preg_replace("~https?:\/\/([^\:\/]+).*~i", "\\1", $_SERVER['HTTP_REFERER']) == preg_replace("~([^\:]+).*~", "\\1", $_SERVER['HTTP_HOST']))) ? 1 : 0;
    }
}

if (!function_exists('curlPost')) {
    function curlPost($url, $params)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_TIMEOUT, 300); //设置超时
        curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
        $result = curl_exec($ch);
        curl_close($ch);
        return $result;
    }
}	